11. Are you talking about electronics, river systems, atmospheric chemistry ? 12. It had to be atmospheric chemistry of some sort, 13. It was designed primarily for modeling atmospheric chemistry , and in particular, for chemical data assimilation. 14. Economics clearly is more difficult to get rightthan climatology, meterology and atmospheric chemistry put together. 15. The strong relationship between atmospheric chemistry and indoor air quality and the chemical reactions occurring indoors. 16. Ammonia and nitrous oxides actively alter atmospheric chemistry . 17. His research has substantially advanced understanding of the atmospheric chemistry of the troposphere and the stratosphere. 18. James J . Huntzicker was hired by OGC as a professor of atmospheric chemistry in 1974. 19. The constant volume case is important in geochemistry and atmospheric chemistry where pressure variations are significant. 20. This was first introduced in 2001, by " Atmospheric Chemistry and Physics " ( ACP ).